{"created":"2021-03-01T06:51:56.744110+00:00","id":33192,"links":{},"metadata":{"_buckets":{"deposit":"ad7f5079-8227-47d1-8f89-4be134334417"},"_deposit":{"id":"33192","owner":"1","owners":[],"pid":{"revision_id":0,"type":"depid","value":"33192"},"status":"published"},"_oai":{"id":"oai:repository.dl.itc.u-tokyo.ac.jp:00033192","sets":["80:4535:4855:4856","9:504:4538:4857:4858"]},"author_link":["129570","129569"],"item_4_alternative_title_1":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"前震のスペクトル的特徴"}]},"item_4_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1978-03-31","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"3-4","bibliographicPageEnd":"371","bibliographicPageStart":"357","bibliographicVolumeNumber":"52","bibliographic_titles":[{"bibliographic_title":"東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo"}]}]},"item_4_description_13":{"attribute_name":"フォーマット","attribute_value_mlt":[{"subitem_description":"application/pdf","subitem_description_type":"Other"}]},"item_4_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"In order to obtain the spectral features of foreshocks in comparison with other events, the spectrum of body waves for three moderatesized earthquake sequences (M>5.4) which were preceded by a considerable number of foreshocks are studied in terms of source parameters. The results obtained here show that the spectrum of the main foreshock is somewhat different from the other events in each region although the relation is not simple. The stress drop of the main foreshock is lower by a factor of about 1/5 than the main shock and major aftershocks (eastern part of Yamanashi pref., 1976) or aftershocks (Kawazu, Izu peninsula, 1976), while the foreshock of Hawaii (1975) shows a relatively higher stress drop compared with the main shock and the shocks in normal activity.","subitem_description_type":"Abstract"}]},"item_4_full_name_3":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{"nameIdentifier":"129570","nameIdentifierScheme":"WEKO"}],"names":[{"name":"Tsujiura, Masaru"}]}]},"item_4_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.15083/0000033192","subitem_identifier_reg_type":"JaLC"}]},"item_4_publisher_20":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"東京大学地震研究所"}]},"item_4_source_id_10":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN00162258","subitem_source_identifier_type":"NCID"}]},"item_4_source_id_8":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"00408972","subitem_source_identifier_type":"ISSN"}]},"item_4_subject_15":{"attribute_name":"日本十進分類法","attribute_value_mlt":[{"subitem_subject":"453","subitem_subject_scheme":"NDC"}]},"item_4_text_21":{"attribute_name":"出版者別名","attribute_value_mlt":[{"subitem_text_value":"Earthquake Research Institute, University of Tokyo"}]},"item_4_text_4":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"地震研究所"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"辻浦, 賢"}],"nameIdentifiers":[{"nameIdentifier":"129569","nameIdentifierScheme":"WEKO"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2017-06-26"}],"displaytype":"detail","filename":"ji0523002.pdf","filesize":[{"value":"815.3 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"ji0523002.pdf","url":"https://repository.dl.itc.u-tokyo.ac.jp/record/33192/files/ji0523002.pdf"},"version_id":"2c35ed74-2040-4992-8be9-4720a6be4b96"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"Spectral Features of Foreshocks","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Spectral Features of Foreshocks","subitem_title_language":"en"}]},"item_type_id":"4","owner":"1","path":["4856","4858"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2008-05-30"},"publish_date":"2008-05-30","publish_status":"0","recid":"33192","relation_version_is_last":true,"title":["Spectral Features of Foreshocks"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2022-12-19T04:08:56.476549+00:00"}